Keyphrases
- question answering
- answering questions
- natural language processing
- natural language
- video clips
- information retrieval
- question classification
- qa clef
- question answering systems
- named entities
- syntactic information
- information extraction
- natural language questions
- passage retrieval
- multimedia
- cross language
- open domain question answering
- video data
- relation extraction
- qa systems
- knowledge representation
- answer validation
- video streams
- commonsense reasoning
- video sequences
- knowledge base
- video shots